i have an xml that i have tried uploading but cant go thru so i think this is the reason.

XML Parsing Error: not well-formed
Location: file:///mnt/sda4/benicio/wordpress.2010-07-20.xml
Line Number 45228, Column 544: <wp:meta_value><![CDATA[a:6:{s:5:"width";s:3:"600";s:6:"height";s:3:"775"; s:14:"hwstring_small";s:22:"height='96' width='74'";s:4:"file";s:40:"2010/02/Melanie-Olivares-FHM-Spain-1.jpg";s:5:"sizes";a:2:{s:9:"thumbnail";a:3:{s:4:" file";s:40:"Melanie-Olivares-FHM-Spain-1-150x150.jpg";s:5:"width";s:3:"150";s:6:"height";s: 3:"150";}s:6:"medium";a:3:{s:4:"file";s:40:"Melani e-Olivares-FHM-Spain-1-232x300.jpg";s:5:"width";s:3:"232";s:6:"height";s: 3:"300";}}s:10:"image_meta";a:10:{s:8:"aperture";s :4:"2.07";s:6:"credit";s:0:"";s:6:"camera";s:2:"," ;s:7:"caption";s:0:"";s:17:"created_timestamp";s:1 :"0";s:9:"copyright";s:0:"";s:12:"focal_length";s: 13:"74099370.6667";s:3:"iso";a:2:{i:0;s:1:"0";i:1; s:1:"0";}s:13:"shutter_speed";s:14:"-29.4445078815";s:5:"title";s:0:"";}}]]></wp:meta_value>

Line Number 45228, Column 544 is where we can see the

"camera";s:2:","

which probably is wrong here?
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------^

That is in a CDATA block so should not be parsed as XML, so the error is going to be earlier in the XML [whatever]

BTW

it cannot be a XML it must be "a XML [file|string|feed|document]"